3-Quinuclidinone → (+-)-3-Quinuclidinol

Participants

Reaction Steps

It has also been found that quinuclidin-3-one or a corresponding salt, such as, quinuclidin-3-one hydrochloride, can be reduced by means of a secondary alcohol as the hydrogen donor in the presence of amorphous, partially dehydrated zirconium hydroxide (ZrO2.xH2O) in the manner of a Meerwein-Ponndorf-Verley reduction to give a good yield of 3-hydroxyquinuclidine or the corresponding salt. If the reduction is carried out using a salt of quinuclidin-3-one, the resulting 3-hydroxyquinuclidine salt can, if desired, be converted into the free 3-hydroxyquinuclidine by addition of a strong base during the work-up of the reaction mixture.

Provenance & Evidence